WO2019114710A1

WO2019114710A1 - Reference signal transmission method and device

Info

Publication number: WO2019114710A1
Application number: PCT/CN2018/120401
Authority: WO
Inventors: 张淑娟; 鲁照华; 蒋创新; 王瑜新
Original assignee: 中兴通讯股份有限公司
Priority date: 2017-12-11
Filing date: 2018-12-11
Publication date: 2019-06-20
Also published as: JP7203860B2; JP2021508219A; CN109905217A; CN112865942A; CN112787967A; EP3565352B1; KR20220062135A; KR102550485B1; AU2022201006B2; CA3197871A1; CA3085390C; CN112865942B; AU2018382109A1; MX2020006078A; PL3565352T3; CA3085390A1; JP2022177174A; BR112020011631A2; KR20200093049A; US20200304264A1

Abstract

The present disclosure provides a reference signal transmission method and device. The method comprises acquiring a sequence group number and/or a sequence number of a reference signal according to at least one of the following information: the number N of time domain symbols comprised in a time unit in which the reference signal is located, a positive integer M, index information in N time domain symbols comprised in a time unit of a time domain symbol in which the reference signal is located, index information of a time domain symbol in which the reference signal is located in M preset time domain symbols, a frame number of a frame in which the reference signal is located, and the number B of time units comprised in a frame in which the reference signal is located; and a time unit index acquired according to a subcarrier spacing of a bandwidth part BWP in which the reference signal is located; determining the reference signal according to the sequence group number and/or the sequence number; and transmitting the reference signal.

Description

Reference signal transmission method and device

The present disclosure claims the priority of the Chinese Patent Application, filed on Dec. 11, 2017, filed on Jan. 2011.

Technical field

The present disclosure relates to the field of communications technologies, and, for example, to a method and apparatus for transmitting a reference signal.

Background technique

In the related art, in a Long Term Evolution (LTE) system, a Sounding Reference Signal (SRS) uplink reference signal occupies a time domain symbol in a slot (only in a special uplink). The Uplink Pilot Time Slot (UpPTS) can occupy more than one time domain symbol. The SRS uses the Zadoff Chu sequence (ZC sequence) with better correlation performance, and the sequence group number of the ZC sequence is u. The acquisition parameter includes a subframe number such that the sequence group number u changes with the subframe to achieve interference randomization.

In the New Radio (NR) system, unlike LTE, an SRS resource can occupy more than one time domain symbol in a slot, so that an improvement scheme of the sequence group number change of the ZC sequence needs to be considered. Thereby obtaining a better interference randomization effect.

There is no effective solution to the problem of the new wireless system in which the method of determining the reference signal in the related art is not applicable to the change of the sequence group number and/or the serial number.

Summary of the invention

The present disclosure provides a method and apparatus for transmitting a reference signal to at least solve the problem of determining a reference signal in the related art that is not applicable to a new wireless system with a sequence group number and/or a sequence number change, and can satisfy a sequence group number and / or the serial number changes the demand of the new wireless system, thereby reducing the interference problem between the uplink measurement reference signals between cells.

The present disclosure provides a method for transmitting a reference signal, the method comprising: acquiring a sequence group number and/or a sequence number of a reference signal according to at least one of the following information: a time domain symbol included in a time unit in which the reference signal is located a number N; a positive integer M; index information of the time domain symbols in which the reference signal is located in N time domain symbols included in one time unit; the time domain symbol in which the reference signal is located is in the preset M time domain symbols The index information of the frame in which the reference signal is located; the number B of time units included in the frame in which the reference signal is located; and the subcarrier spacing according to the bandwidth of the reference signal (Band Width Part, BWP) Time unit index;

Determining the reference signal according to the sequence group number and/or the serial number;

Transmitting the reference signal;

The M satisfies the following condition: less than or equal to the N, and greater than or equal to A; wherein A is the maximum number of time domain symbols allowed to be occupied by the reference signal in one time unit, or A is the number of time domain symbols occupied by the reference signal in one time unit.

The present disclosure also provides a method for transmitting a reference signal, the method comprising: performing at least one of: selecting one of a plurality of parameter sets in a plurality of formulas according to signaling information or a pre-agreed rule; Selecting a formula; determining a sequence group number and/or a sequence number according to the selected parameter set and/or the selected formula; determining a reference signal according to the sequence group number and/or the serial number; and transmitting the reference signal.

The present disclosure also provides a method for transmitting signaling, the method comprising: transmitting signaling information to a second communication node; wherein the signaling information is used to instruct the second communication node to perform at least one of the following operations Selecting a first set of parameters among the one or more parameter sets, selecting a first formula among the one or more formulas, and determining a reference signal based on the first set of parameters and/or the first formula.

The present disclosure further provides a method for transmitting a reference signal, including: determining, according to signaling information or an appointment rule, an acquisition manner of a parameter for generating a sequence group number and/or generating a sequence number; determining the parameter according to the obtaining manner, Generating a sequence group number and/or generating a sequence number according to the parameter; determining a reference signal according to the sequence group number and/or the sequence number; and transmitting the reference signal.

The present disclosure also provides a transmission device for a reference signal, the device comprising: a first acquisition module, configured to acquire a sequence group number and/or a sequence number of the reference signal according to at least one of the following information: a time of the reference signal The number of time domain symbols included in the unit is N; a positive integer M; index information of the time domain symbols in which the reference signal is located in N time domain symbols included in one time unit; the time domain symbol in which the reference signal is located is The index information in the preset M time domain symbols; the frame number of the frame in which the reference signal is located; the number B of time units included in the frame in which the reference signal is located; and the subcarrier spacing according to the BWP in which the reference signal is located The obtained time unit index;

a first determining module, configured to determine the reference signal according to the sequence group number and/or the serial number;

a first transmission module configured to transmit the reference signal;

The present disclosure also provides a transmission device for a reference signal, the device comprising: performing an operation, configured to perform at least one of: selecting a parameter set among a plurality of parameter sets according to signaling information or a pre-agreed rule, Selecting a formula among the plurality of formulas; the second determining module is configured to determine the sequence group number and/or the sequence number according to the selected parameter set and/or the selected formula; the third determining module is set as the basis The sequence group number and/or the sequence number determine a reference signal; the second transmission module is configured to transmit the reference signal.

The present disclosure further provides a transmission device for a reference signal, comprising: a fourth determining module, configured to determine, according to signaling information or an appointment rule, an acquisition manner of a parameter for generating a sequence group number and/or a generation sequence number; a module, configured to determine the parameter according to the obtaining manner, the first generating module is configured to generate a sequence group number and/or a generated sequence number according to the parameter; and a sixth determining module, configured to be according to the sequence group number and / or serial number determines the reference signal; a third transmission module is arranged to transmit the reference signal.

The present disclosure also provides a storage medium including a stored program that executes any of the above methods when executed.

The present disclosure also provides a processor configured to execute a program that executes any of the methods described above while the program is running.

DRAWINGS

1 is a schematic flowchart of a method for transmitting a reference signal according to an embodiment;

2 is a schematic diagram of a time domain symbol position occupied by SRS resource1 in a slot according to an embodiment;

FIG. 3 is a schematic diagram showing the time domain symbol position occupied by SRS resource 2 in a slot according to an embodiment; FIG.

4 is a schematic diagram of a time domain symbol position occupied by an SRS resource 3 in a slot according to an embodiment;

FIG. 5 is a schematic diagram of a time domain symbol position occupied by an SRS resource 4 in a slot according to an embodiment; FIG.

FIG. 6 is a schematic diagram of a frame including 40 slots in an embodiment; FIG.

FIG. 7 is a schematic diagram of different BWPs corresponding to different slot numbers provided by an embodiment.

Detailed ways

A mobile communication network (including but not limited to a fifth-generation (5G) mobile communication network) is provided in the embodiments of the present disclosure, and the network architecture of the network may include a network side device (such as a base station) and a terminal. In this embodiment, an information transmission method operable on the above network architecture is provided. The operating environment of the above-described reference signal transmission method provided in this embodiment is not limited to the above network architecture.

The manner of the embodiments described in the present disclosure is not limited to the terminal or the base station side, and both the terminal and the base station side may perform the method in the present disclosure.

A time unit described in the present disclosure is a slot, or a subframe, or a time domain symbol between a first subcarrier, wherein a time domain symbol of a first subcarrier interval includes Q second subcarriers. A domain symbol, where Q is a positive integer greater than or equal to 1, and the one time unit may also be other time units.

Embodiment 1

According to an embodiment of the present disclosure, a method of transmitting a reference signal is proposed. Referring to FIG. 1, the method provided in this embodiment includes the following steps.

Step 110: Obtain a sequence group number and/or a sequence number of the reference signal according to at least one of the following information: a number of time domain symbols included in a time unit in which the reference signal is located; a positive integer M; a time when the reference signal is located The index information of the N time-domain symbols included in a time unit; the index information of the time domain symbol in which the reference signal is located in the preset M time-domain symbols; the frame number of the frame in which the reference signal is located a number of time units B included in the frame in which the reference signal is located; a time unit index obtained according to a subcarrier spacing of the BWP in which the reference signal is located.

In this embodiment, the M satisfies the following condition: less than or equal to the N, and greater than or equal to A; wherein, A is a maximum number of time domain symbols allowed to be occupied by the reference signal in one time unit, Or the A is the number of time domain symbols occupied by the reference signal in one time unit. In this embodiment, when the reference signal is a measurement reference signal, the reference signal refers to a measurement reference signal resource, such as an SRS resource.

Step 120: Determine the reference signal according to the sequence group number and/or the serial number.

Step 130, transmitting the reference signal.

In this embodiment, transmitting the reference signal may include transmitting or receiving the reference signal.

In this embodiment, the execution order of

steps

110, 120, and 130 is interchangeable, that is, the order of step 110, step 120, and step 130 is not limited.

Obtaining, by the foregoing step, the sequence group number and/or the sequence number of the reference signal according to at least one of the information recorded in the embodiment; determining the reference signal according to the sequence group number and/or the sequence number, and transmitting the reference signal; The problem of determining the reference signal in the related art is not applicable to the problem of the new wireless system with the sequence group number and/or the serial number change, and the determination method of the reference signal suitable for the new wireless system is given, which can satisfy the sequence group number and / or serial number changes in the needs of the new wireless system.

In an embodiment, the M is determined according to one of the following information: a number of time domain symbols included in a time domain symbol set that is allowed to occupy the reference signal in a time unit; and the reference signal is occupied in a time unit The maximum value of the number of time domain symbols; the distance between the time domain symbol with the largest index and the time domain symbol with the smallest index in the time domain symbol set allowed in the time unit; wherein the index is one The index of the time domain symbol in the set of time domain symbols included in the time unit.

In an embodiment, the N and/or M are determined according to one of the following ways: the N and/or M are carried in the received signaling information; the N and/or M are pre-agreed.

In an embodiment, the determining the reference signal according to the sequence group number and/or the sequence number comprises determining the reference signal by:

Wherein u is the sequence group number,

For the reference signal,

For the length of the reference signal, δ is the total number of dressing levels of Interleaved Frequency Division Multiple Access (IFDMA) or δ is 0, and ω belongs to {0, 1};

When it is greater than the predetermined threshold:

v is the serial number, belonging to {0, 1}; 0 ≤ α ≤ 2π,

Is less than

Maximum prime number;

In the case of less than or equal to the predetermined threshold,

among them,

It is obtained by searching the preset table according to the sequence group number u, and the v is 0.

In this embodiment, for the total number of dressing levels of the IFDMA, for example, the reference signal occupies one RE per b resource elements (Resource Element, RE) in an Orthogonal Frequency Division Multiplexing (OFDM), then the comb The total number of levels is b.

In an embodiment, the index information in the time domain symbol set included in the time domain of the time domain symbol in which the reference signal is located is sequentially increased from the back to the front in chronological order. It can be numbered starting from the end position, similar to the reversed number.

In an embodiment, the sequence group number of the reference signal is obtained according to the following manner: the sequence group number u=(f _gh (x)+f _ss ) mod C; or the sequence group number u is according to f _gh (x) Acquire.

Wherein f _gh (x) is a function of x, the x includes at least one of the information, the C is a total number of sequence groups, and the f _ss is according to an agreed rule and/or received signaling The parameters included in the information are obtained.

In this embodiment, x includes at least one of the information, that is, information related to determining the sequence group number in step one in the foregoing embodiment.

In an embodiment,

Wherein h(x) is a function of x, the x includes at least one of the information, and/or the x includes a time unit index of the time unit in one frame; An integer greater than or equal to 8, c(z) is the zth value in the sequence generated by the random sequence function c(), and z is a non-negative integer.

In this embodiment, x includes at least one of the information, that is, information related to determining a sequence group number in step one in the foregoing embodiment, and the x may further include a time unit in which the reference signal is located in one frame. Time unit index.

In an embodiment, at least one of the following features is satisfied: the D is carried in the received signaling information; the c() is a pseudo-random random sequence generating function; the value in C is greater than 30 In case, the D is greater than 8;

When x ₁ >0,

When x ₁ =0, where

In an embodiment, the h(x) satisfies one of the following formulas: h(l ₁ , M, n _s )=l ₁ +n _s *M; h(l ₁ , M, n _s , n _f ) =l ₁ +n _s *M+B*n _f *M;h(l ₂ ,N,n _s )=l ₂ +n _s *N;h(l ₂ ,N,n _s ,n _f )=l ₂ +n _s *N+B*n _f *N.

Wherein said l ₁ where the reference signal is a time-domain symbol index information in a predetermined set of M time-domain symbols in, 0≤l ₁ <M, l ₂ is the location of the time domain reference signal The index information in the N time domain symbols included in the one time unit, 0 ≤ l ₂ < N, the n' _f = n _f or n' _f = n _f mod (E), wherein n _f is a frame number of a frame in which the reference signal is located, the E is a predetermined value, and the n _s is a time unit index or the n _s obtained according to a subcarrier spacing of the BWP where the reference signal is located. The index of the time unit in which the reference signal is located in one frame.

In an embodiment, the reference signal comprises one of the following reference signals: a measurement reference signal, a demodulation reference signal, and a control channel frequency domain spreading sequence.

In an embodiment, acquiring the sequence number according to the information comprises: in the case of a sequence hopping, the sequence number v=c(z ₁ ), wherein z _{1 is obtained} according to at least one of the information; c ( z) is the zth value in the sequence generated by the random sequence function c(), and z is a non-negative integer.

In an embodiment, the z _{1 is obtained} according to one of the following formulas: z ₁ = n _s * N + l ₂ ; z ₁ = n _s * M + l ₁ ; z ₁ = n _s * N + l ₂ + B*N*n _f ; z ₁ =n _s *M+l ₁ +B*M*n _f .

The l ₁ where the reference signal is a time-domain symbol index information in a predetermined set of M time-domain symbols in, 0≤l ₁ <M, l ₂ is the time domain signal of the reference symbol Index information in N time domain symbols included in the one time unit, 0≤l ₂ <N, the n' _f =n _f or n' _f =n _f mod(E), wherein the n _f For the frame number of the frame in which the reference signal is located, E is a predetermined value, and the n _s is a time unit index obtained according to a subcarrier spacing of the BWP where the reference signal is located or the _ns is a location where the reference signal is located The index of the time unit in one frame.

According to another embodiment of the present disclosure, there is also provided a method of transmitting a reference signal, the method comprising the following steps.

Step 1: According to the signaling information or the pre-agreed rule, at least one of the following operations is performed: selecting one parameter set among the plurality of parameter sets, and selecting one formula among the plurality of formulas.

In step two, the sequence group number and/or the sequence number are determined according to the selected parameter set and/or the selected formula.

In step three, the reference signal is determined according to the sequence group number and/or the sequence number.

In step four, the reference signal is transmitted. Transmission includes sending or receiving.

In an embodiment, the order of execution of steps one, two, three, and four is interchangeable, that is, the order of step one, step two, step three, and step four is not limited in the implementation of the solution.

The above solution solves the problem that the method for determining the reference signal in the related art is not applicable to the new wireless system with the sequence group number and/or the serial number change, and the determination method of the reference signal suitable for the new system is given, which can satisfy the sequence. The need for a new wireless system for group number and/or serial number changes.

In an embodiment, the plurality of parameter sets includes at least a first parameter set and a second parameter set.

In an embodiment, the first parameter set includes at least one of the following parameters: a number L of time domain symbols occupied by the reference signal in one time unit, and a time domain symbol occupied by the reference signal is in the L The index information in the time domain symbols is a time unit index obtained according to the subcarrier spacing of the BWP where the reference signal is located.

The second parameter set includes at least one of the following parameters: a number N of time domain symbols included in a time unit in which the reference signal is located, a positive integer M, and an index of a time domain symbol in which the reference signal is located in a time unit Information, index information of a time domain symbol in which the reference signal is located in a preset M time domain symbols; a frame number of a frame in which the reference signal is located; and a time unit included in a frame in which the reference signal is located The number B is a time unit index obtained according to the subcarrier spacing of the BWP where the reference signal is located.

In this embodiment, the reference set includes at least one parameter.

In an embodiment, the multiple parameter sets include at least a third parameter set and a fourth parameter set, where the third parameter set includes time domain symbol index information, and the fourth parameter set does not include a time domain. Symbol index information.

In an embodiment, determining the reference signal based on the sequence group number and/or the sequence number includes determining the reference signal by:

Wherein u is the sequence group number,

For the reference signal,

For the length of the reference signal, δ is the total number of dressing levels of IFDMA or δ is 0, and ω belongs to {0, 1};

When it is greater than the predetermined threshold:

v is the serial number, belonging to {0, 1}; 0 ≤ α ≤ 2π,

Is less than

Maximum prime number;

In the case of less than or equal to the predetermined threshold,

among them,

It is obtained by searching the preset table according to the sequence group number u, and v is 0.

In an embodiment, the sequence group number of the reference signal is obtained according to the following manner: the sequence group number u=(f _gh (x)+f _ss ) mod C; or the sequence group number u according to f _gh (x )Obtain.

Wherein f _gh (x) is a function of x, the x includes at least one of information in the selected parameter set, the C is a total number of sequence groups, and the f _ss is according to an agreed rule and / or obtained by the parameters included in the received signaling information.

In an embodiment,

Wherein h(x) is a function of x, the x includes at least one of the information, and/or the x includes an index of the time unit in one frame; the D is greater than or equal to An integer of 8, c(z) is the zth value in the sequence generated by the random sequence function c(), and z is an integer.

In an embodiment, the above embodiment satisfies one of the following features: the D is carried in the received signaling information; the c() is a pseudo-random random sequence generating function; in the case where the value of C is greater than 30 , the D is greater than 8;

When x ₁ >0,

When x ₁ =0,

among them

In an embodiment, the h(x) satisfies one of the following formulas: h(l ₁ , M, n _s )=l ₁ +n _s *M; h(l ₁ , M, n _s , n _f ) =l ₁ +n _s *M+B*n _f *M;h(l ₂ ,N,n _s )=l ₂ +n _s *N;h(l ₂ ,N,n _s ,n _f )=l ₂ +n _s *M+B*n _f *N.

Wherein l ₁ is the time domain symbols where the reference signal index information in a predetermined set of M time-domain symbol, said reference signal l ₂ is the time domain symbols in the time unit N time-domain index information symbols included in said n _{_'f} = n _f or _{_{n' f = n f mod (}} E), wherein n _f is the frame number of the frame reference signal is located, E is a predetermined value, and the n _s is a time unit index obtained according to a subcarrier spacing of the BWP where the reference signal is located or the n _s is an index of a time unit in which the reference signal is located in one frame.

In an embodiment, the formula is used to describe a hopping rule for the sequence group number and/or sequence number.

In an embodiment, the hopping formula of the sequence group number includes at least one of the following formulas: h(l, L, n _s ) = l ₀ + n _s * L; h (l ₁ , M, n _s ) =l ₁ +n _s *M;h(l ₁ ,M,n _s ,n _f )=l ₁ +n _s *M+B*n _f *M;h(l ₂ ,N,n _s )=l ₂ +n _s *N;h(l ₂ ,N,n _s ,n _f )=l ₂ +n _s *M+B*n _f *N; the jump formula of the sequence number v=c(z ₁ ), where z _{1 is obtained} according to one of the following formulas: z ₁ = n _s * N + l ₂ ; z ₁ = n _s * M + l ₁ ; z ₁ = n _s * N + l ₂ + B * N * n '_f; z ₁ = n _s * M + l ₁ + B * M * n' _f .

Wherein l ₁ is the time domain symbols where the reference signal index information in a predetermined set of M time-domain symbol, said reference signal l ₂ is the time domain symbols in the time unit The index information in the N time domain symbols included in the n, _f = n _f or n' _f = n _f mod (E), where n _f is the frame number of the frame in which the reference signal is located, and E is a predetermined value; the B is a number of time units included in a frame in which the reference signal is located; the n _s is a time unit index obtained according to a subcarrier spacing of a BWP where the reference signal is located, or the n _s is The index of the time unit in which the reference signal is located in one frame.

The sequence group number u=(f _gh (x)+f _ss )mod C,

The f _gh (x) is a function of x, the x includes at least one of the information, C is the total number of sequence groups; D is an integer greater than or equal to 8; c(z) is a random sequence function c() The zth value in the generated sequence, z is a non-negative integer; the h(x) is a function of x, the x includes at least one of the information, and/or the x includes the time The index of the unit in the frame.

In an embodiment, the obtaining the sequence number according to the parameter, in the case of a sequence hopping, the sequence number v=c(z ₁ ), wherein z _{1 is obtained} according to the parameter; c(z) is The zth value in the sequence generated by the random sequence function c(), z is a non-negative integer.

The l ₁ where the reference signal is a time-domain symbol index information in a predetermined set of M time-domain symbols in, 0≤l ₁ <M, l ₂ is the time domain signal of the reference symbol Index information in N time domain symbols included in the one time unit, 0≤l ₂ <N, the n' _f =n _f or n' _f =n _f mod(E), wherein the n _f For the frame number of the frame in which the reference signal is located, the E is a predetermined value, and the n _s is a time unit index obtained according to a subcarrier spacing of the BWP where the reference signal is located or the n _s is the reference The index of the time unit in which the signal is located in a frame.

According to another embodiment of the present disclosure, there is also provided a signaling sending method, which may be used for a base station side, but is not limited thereto, and the method includes the following steps.

Step 1: Send signaling information to the second communications node, where the signaling information is used to indicate that the second communications node performs at least one of: selecting a first parameter set in one or more parameter sets, Selecting a first formula among one or more formulas; and determining a reference signal based on the first set of parameters and/or the first formula.

Step 1: Determine, according to the signaling information or the agreed rule, a manner of acquiring a parameter of the sequence group number and/or the generated sequence number.

Step 2: determining the parameter according to the obtaining manner.

Step three, generating a sequence group number and/or generating a sequence number according to the parameter.

In step four, the reference signal is determined according to the sequence group number and/or the sequence number.

In step five, the reference signal is transmitted. Transmission may include transmitting or receiving a reference signal.

In an embodiment, the execution order of steps one, two, three, four or five is interchangeable, that is, the implementation of the solution does not limit the steps one, two, three, four, and five. order.

The above solution solves the problem that the method for determining the reference signal in the related art is not applicable to the new wireless system with the sequence group number and/or the serial number change, and the determination method of the reference signal suitable for the new wireless system is provided, which can satisfy The need for a new wireless system for changes in sequence group number and/or serial number.

In an embodiment, the parameter determining the sequence group number and/or the sequence number includes at least one of the following parameters: a time domain symbol index, and a time domain symbol number.

In an embodiment, the manner of obtaining the time domain symbol index includes at least two acquisition modes in the following acquisition manners. The time domain symbol index is an index of time domain symbols in which the reference signals are located in L time domain symbols, where L is the number of time domain symbols occupied by the reference signal in one time unit.

The time domain symbol index is an index of time domain symbols in which the reference signal is located in N time domain symbols, where N is the number of time domain symbols included in the time unit in which the reference signal is located.

The time domain symbol index is an index of time domain symbols in which the reference signal is located in M time domain symbols, where M is a time domain included in a time domain symbol set that the reference signal is allowed to occupy in one time unit. The number of symbols.

In an embodiment, the manner of obtaining the number of time domain symbols includes at least two acquisition modes in the following acquisition manners.

The number of the time domain symbols is the number of time domain symbols occupied by the reference signal in one time unit. In this embodiment, when the reference signal is a measurement reference signal, the reference signal refers to a reference signal resource. .

The number of time domain symbols is the number of time domain symbols included in the time unit in which the reference signal is located.

The number of time domain symbols is the number of time domain symbols included in the set of time domain symbols allowed to be occupied by the reference signal in one time unit.

Description will be made below in conjunction with the exemplary embodiments.

Exemplary embodiment 1

In this embodiment, the uplink reference signal SRS adopts a ZC (Zadoff-Chu) sequence when the SRS length exceeds a predetermined threshold, and adopts a predetermined sequence when the sequence length of the SRS is lower than or equal to a predetermined threshold.

In this embodiment, the SRS reference signal in LTE

Obtained by the following formula:

among them

Is the sequence length of SRS, m is the number of physical resource blocks (PRBs) occupied by SRS, δ is the total number of dresses in SRS using IFDMA mode, α is a cyclic shift parameter, and ω belongs to {0, 1} or Fixed to 0.

When the sequence length of SRS

more than the

(

Is the number of subcarriers included in a PRB, such as in LTE and NR,

When it is 12)

V serial number, belonging to {0, 1}, 0 ≤ α ≤ 2π,

Is less than

The largest prime number. In an embodiment, when the number of PRBs occupied by the SRS is less than 6, v is 0, and when the number of PRBs occupied by the SRS is greater than or equal to 6, v may be 0 or 1.

When the sequence length of SRS

Less than or equal to

When said

among them

According to the sequence group number u, a predetermined table is obtained.

Where u is the sequence group number, and u is obtained by the following formula.

u=(f _gh (n _s )+f _ss )mod 30 (1)

Where c(z) is the zth value in the Pseudo-random random sequence, and given an initialization value c _init , a random sequence can be generated. Where the initial value in the sequence generation is

among them

It is a parameter of the high-level configuration or a physical cell identification number.

A 31-length Pseudo-random random sequence was generated as follows.

c(n)=(x ₁ (n+N _C )+x ₂ (n+N _C ))mod2

x ₁ (n+31)=(x ₁ (n+3)+x ₁ (n)) mod2

x ₂ (n+31)=(x ₂ (n+3)+x ₂ (n+2)+x ₂ (n+1)+x ₂ (n)) mod2

n=0,1,...,M _PN -1,N _C =1600, x ₁ (0)=1, x ₁ (n)=0, n=1,2,...,30,

It can be seen from formula (2) that when the sequence group number hopping is enabled, the acquisition information of the sequence group number includes the subframe number n _s , and one SRS resource in the NR may include more than one time domain in one slot. Symbol, so that the acquisition of the above sequence group number can be improved. The sequence group number and/or the sequence number are obtained according to at least one of the following information: the number of time domain symbols N included in one time unit, a positive integer M, and the time domain symbol in which the reference signal is located is included in one time unit The index information in the set of domain symbols, the index information of the time domain symbol in which the reference signal is located in the preset M time domain symbols, the frame number of the frame in which the reference signal is located, and the number of time units included in one frame B; wherein M is less than or equal to N, greater than or equal to a positive integer of A, the A is the maximum number of time domain symbols that the reference signal can occupy in one time unit, or the A is the reference signal The number of time domain symbols occupied in a time unit.

For example, the number of time domain symbols that an SRS resource can occupy in a slot is {1, 2, 4}. FIG. 3 is a schematic diagram of a time domain symbol position occupied by SRS resource 2 in a slot according to an embodiment. As shown in FIG. 3, SRS resource 2 occupies two time domain symbols in one slot, and A is 2 is SRS resource2. The number of time domain symbols occupied in a slot, or A is 4 is the maximum number of time domain symbols that the SRS can occupy in a slot.

In an embodiment, the sequence group number is obtained by the following formula.

Or when the group jump is enabled

Where C is the total number of sequence groups, and D satisfies at least one of the following four characteristics.

Feature 1: In the case where the value of C is greater than 30, the D is greater than 8.

Feature 2:

Feature three:

Feature 4: When x ₁ >0,

When x ₁ =0,

among them

Where h() is a function, which may be one of the following formulas, or signaling indicating that h() in the acquisition mode of the sequence group number is which of the formulas of more than one of the following formulas. For example, if the formula set is {(3-1), (3-2)}, then the signaling indication is which of the formulas (3-1) and (3-2), or the formula set is {( 3-1), (3-2), (3-3), (3-4)}, the signaling indication is h() formula (3-1), (3-2), (3-3) Which one of (3-4).

h(l ₁ ,M,n _s )=l ₁ +n _s *M, (3-1)

h(l ₁ ,M,n _s ,n _f )=l ₁ +n _s *M+B*n' _f *M; (3-2)

h(l ₂ ,N,n _s )=l ₂ +n _s *N; (3-3)

h(l ₂ ,N,n _s ,n _f )=l ₂ +n _s *N+B*n' _f *N (3-4)

Or when the sequence hopping is enabled, the sequence number v=c(z ₁ ), where z _{1 is} obtained by one of the following formulas:

z ₁ =l ₁ +n _s *M (3-1B)

z ₁ =l ₁ +n _s *M+B*n' _f *M (3-2B)

z ₁ =l ₂ +n _s *N (3-3B)

z ₁ =l ₂ +n _s *N+B*n' _f *N (3-4B)

In the formula {(3-2), (3-4) , (3-2B), (3-4B)} , B is a slot number included in the frame, the n _{_'f} = n _f or n ' _f = n _f mod (E), where n _f is the frame number of the frame in which the reference signal is located, and may also be referred to as a frame index. FIG. 6 is a schematic diagram of a frame including 40 slots provided in an embodiment. As shown in FIG. 6, one frame corresponds to 10 milliseconds (ms), and one frame includes 40 slots, and then B=40. E is a predetermined value. In an embodiment, E is an integer multiple of C.

In the formula {(3-1), (3-2), (3-1B), (3-2B)}, M is the number of time-domain symbols included in the time-domain symbol set that the SRS can occupy in a slot. As shown in FIG. 2 to FIG. 5, the time domain symbol occupied by the SRS is the last six time domain symbols of one slot, and the number of time domain symbols occupied by one SRS resource in one slot belongs to {1, 2, 4}. Then, M=6, l ₁ is the relative index of the time domain symbols occupied by the SRS resource in the preset M time domain symbols, as shown in FIG. 2 to FIG. 5, where l ₁ is the time domain symbol occupied by the SRS resource. The relative index in the last six time-domain symbols in a slot. As shown in FIG. 2, FIG. 2 is a schematic diagram of a time domain symbol position occupied by SRS resource1 in a slot according to an embodiment. SRS resource1 occupies four time domain symbols {9, 10, 11, 12} in one slot. , corresponding l ₁ ={1,2,3,4}. As shown in Figure 3, SRS resource2 occupies two time domain symbols {11, 12} in a slot, corresponding to l ₁ = {3, 4}. 4 is a schematic diagram of a time domain symbol position occupied by SRS resource3 in a slot according to an embodiment. As shown in FIG. 4, SRS resource3 occupies two time domain symbols {12, 13} in a slot, and corresponding l ₁ = {4, 5}. FIG. 5 is a schematic diagram of a time domain symbol position occupied by SRS resource4 in a slot according to an embodiment. As shown in FIG. 5, SRS resource4 occupies {12} one time domain symbol in a slot, and corresponding l ₁ = {4}.

The symbol index of the above l ₁ in the M time domain symbols is numbered sequentially in order from the beginning to the end, that is, the first time domain symbol in the M time domain symbols corresponds to l ₁ =0. This embodiment does not exclude, l ₁ M symbol index in the time domain symbols chronologically sequentially increasing from the back sequence number, i.e., the M time-domain symbols rearmost symbol corresponds to a time-domain l ₁ =0, as shown in FIG. 2 to FIG. 5, l ₁ is a relative index of the time domain symbols occupied by the SRS resource in the last six time domain symbols in one slot, as shown in FIG. 2, SRS resource1 is in A slot contains the four time domain symbols {9, 10, 11, 12}, corresponding to l ₁ = {4, 3, 2, 1}. As shown in Figure 3, SRS resource2 occupies {11 in a slot. , 12} these two time domain symbols, corresponding to l ₁ = {2, 1}, as shown in Figure 4, SRS resource3 occupies two time domain symbols {12, 13} in a slot, corresponding l ₁ ={1,0}, as shown in Figure 4, SRS resource3 occupies {12} this time domain symbol in a slot, corresponding to l ₁ ={1}.

In the formula {(3-3), (3-4), (3-3B), (3-4B)}, the number of time domain symbols included in one slot is 14, then N=14, as shown in Fig. 2. As shown in FIG. 5, the time domain symbol occupied by the SRS is the last six time domain symbols of one slot, and the number of time domain symbols occupied by one SRS resource in one slot belongs to {1, ₂ , 4}, l ₂ index information is time-domain symbol SRS resource occupied a slot in the time domain symbol comprising a set in FIG. 2 to 5, L ₂ is a time-domain SRS resource occupied symbols included in one slot 14 The index information in the time domain symbol set, as shown in Figure 2, SRS resource1 occupies 4 time domain symbols {9, 10, 11, 12} in a slot, corresponding l ₂ = {9, 10, 11 , 12}, as shown in Figure 3, SRS resource2 occupies two time domain symbols {11, 12} in a slot, corresponding to l ₂ = {11, 12}, as shown in Figure 4, SRS resource3 is in The slot occupies two time domain symbols {12, 13}, corresponding to l ₂ = {12, 13}. As shown in Figure 5, SRS resource4 occupies {12} of this time domain symbol in a slot, corresponding to l ₂ = {12}.

The above-mentioned l ₂ is the time-domain symbol occupied by the SRS. The symbol indexes in the N time-domain symbols included in one slot are numbered sequentially in order from the time of the arrival, that is, the N time-domain symbols are at the beginning of the slot. The time domain symbol corresponds to l ₂ =0. This embodiment also does not exclude that the symbol indexes in the N time domain symbols included in one slot are sequentially numbered sequentially from the back to the front in the chronological order, that is, the N time domain symbols are at the end of one slot. The time domain symbol corresponds to l ₂ =0. As shown in Figure 2, SRS resource1 occupies four time domain symbols {9, 10, 11, 12} in a slot, corresponding to l ₂ = {4, 3, _2, 1}, as shown in Figure 3. SRS resource2 occupies two time domain symbols {11, 12} in a slot, corresponding to l ₂ = {2, 1}. As shown in Figure 4, SRS resource3 occupies {12, 13} in a slot. The time domain symbols, corresponding to l ₂ ={1,0}, as shown in FIG. 5, SRS resource3 occupies {12} one time domain symbol in a slot, corresponding to l ₂ ={1}.

In this embodiment, the terminal determines the SRS reference signal according to the sequence group number; and sends the reference signal on the SRS port.

The above is taking the reference signal sequence acquisition of the uplink measurement reference signal as an example. Similarly, the reference signal sequence of the uplink demodulation reference signal may also adopt this method, or the sequence group number of the ZC sequence used for frequency domain spreading of the uplink control channel. The above method can also be employed. I will not repeat them here.

In the present embodiment, although N, M is a preset fixed value, also called N, M is an acquisition parameter of the function h(), or an input parameter.

In another embodiment, the base station may also assign N, and/or M information to the terminal.

Exemplary embodiment 2

In this embodiment, the base station sends signaling information, where the signaling information includes selection information for the Q parameter sets, and the terminal acquires the reference signal sequence group number and/or the serial number according to the parameter set indicated by the signaling information. And obtaining a reference signal according to the sequence group number and/or the serial number. Wherein Q is a positive integer greater than or equal to 1.

For example, the Q parameter sets include a first parameter set and a second parameter set. The first parameter set includes at least one of the following parameters: a number L of time domain symbols occupied by the reference signal in one time unit; and a time domain symbol in which the reference signal is located in the L time domain symbols Index information; a time unit index obtained from the BWP in which the reference signal is located. When the reference signal is a measurement reference signal, the number L of time domain symbols occupied by the reference signal in one time unit is a number L of time domain symbols occupied by a measurement reference signal resource in one time unit.

The second parameter set includes at least one of the following parameters: a number N of time domain symbols included in a time unit; a positive integer M; index information of a time domain symbol in which the reference signal is located in a time unit; where the reference signal is located The index information of the time domain symbol in the preset M time domain symbols, the frame number, the number B of the time units included in the frame, and the time unit index obtained according to the BWP where the reference signal is located.

The one parameter set includes at least one parameter.

As shown in FIG. 2 to FIG. 5, the number of time domain symbols occupied by one SRS resource in one slot belongs to {1, 2, 4}, and the time domain symbol occupied by the SRS is the last six time domain symbols in one slot.

If the sequence group number is obtained with the first parameter set, the formula h() in the jump of the sequence group number (1-0) is (4-1).

h(l,L,n _s )=l ₀ +n _s *L, (4-1)

When the sequence number jump is enabled, the sequence number v=c(z ₁ ), z _{1 is} obtained by the following formula.

z ₁ =l ₀ +n _s *L (4-1B)

Where L is the time domain symbol occupied by one SRS resource in one slot, and l ₀ is the index information of the time domain symbols occupied by the SRS resource in the L time domain symbols occupied by the SRS resource in one slot. As shown in Figure 2, SRS resource1 occupies four time domain symbols {9, 10, 11, 12} in a slot, corresponding to l ₀ = {0, 1, 2, 3}, L = 4, as shown in Figure As shown in Figure 3, SRS resource2 occupies two time domain symbols {11, 12} in a slot, corresponding to l ₀ = {0, 1}, L = 2, as shown in Figure 4, SRS resource3 is in a slot. Occupies the two time domain symbols {12,13}, corresponding to l ₀ ={0,1}, L=2. As shown in Figure 5, SRS resource4 occupies {12} this time domain symbol in a slot. , corresponding l ₀ = {0}, L=1.

If the sequence group number is obtained by the second parameter set, the jump formula h() of the sequence group number is one of (4-2) to (4-5):

h(l ₁ ,M,n _s )=l ₁ +n _s *M; (4-2)

h(l ₁ ,M,n _s ,n _f )=l ₁ +n _s *M+B*n' _f *M; (4-3)

h(l ₂ ,N,n _s )=l ₂ +n _s *N; (4-4)

h(l ₂ ,N,n _s ,n _f )=l ₂ +n _s *N+B*n' _f *N (4-5)

And/or when the sequence number hopping is enabled, the sequence number v=c(z ₁ ), z _{1 is} obtained by one of the following formulas

z ₁ =l ₁ +n _s *M (4-2B)

z ₁ =l ₁ +n _s *M+B*n' _f *M (4-3B)

z ₁ =l ₂ +n _s *N (4-4B)

z ₁ =l ₂ +n _s *N+B*n _f *N (4-5B)

In the formula {(4-3), (4-5), (4-3B), (4-5B)}, B is the number of slots included in one frame, the n' _f = n _f or n ' _f = n _f mod (E), where n _f is the frame number of the frame in which the reference signal is located, and may also be referred to as a frame index. FIG. 6 is a schematic diagram of a frame including 40 slots provided in an embodiment. As shown in FIG. 6, one frame corresponds to 10 ms, and one frame includes 40 slots, and then B=40. E is a predetermined value, and in one embodiment, E is an integer multiple of C.

In the formula {(4-2), (4-3), (4-2B), (4-3B)}, M is the number of time domain symbols included in the time domain symbol set that the SRS can occupy in a slot, As shown in FIG. 2 to FIG. 5, the SRS can occupy the last six time domain symbols of one slot in one slot, and the number of time domain symbols occupied by one SRS resource in one slot belongs to {1, 2, 4}. i.e. SRS resource may occupy a {2,4} a time-domain symbol slot last six time-domain symbols, the M = 6, when SRS resource occupied by a predetermined time domain symbol to the M l ₁ symbol relative index field, as shown in FIG. 2 to 5, l ₁ is the SRS resource occupied by the time domain symbols in a slot in the last 6 relative index of time domain symbols. As shown in Figure 2, SRS resource1 occupies four time domain symbols {9, 10, 11, 12} in a slot, corresponding to l ₁ = {1, 2, 3, 4}, as shown in Figure 3. SRS resource2 occupies two time domain symbols {11, 12} in a slot, corresponding to l ₁ = {3, 4}. As shown in Figure 4, SRS resource3 occupies {12, 13} in a slot. The time domain symbols, corresponding to l ₁ ={4,5}, as shown in FIG. 5, SRS resource4 occupies {12} one time domain symbol in a slot, corresponding to l ₁ = {4}.

The symbol index of the above l ₁ in the M time domain symbols is numbered sequentially in order from the beginning to the end, that is, the first time domain symbol in the M time domain symbols corresponds to l ₁ =0. This embodiment does not exclude, l ₁ M symbol index in the time domain symbols chronologically sequentially increasing from the back sequence number, i.e., the M time-domain symbols rearmost symbol corresponds to a time-domain l ₁ =0, as shown in FIG. 2 to FIG. 5, l ₁ is a relative index of the time domain symbols occupied by the SRS resource in the last six time domain symbols in one slot. As shown in Figure 2, SRS resource1 occupies four time domain symbols {9, 10, 11, 12} in a slot, corresponding to l ₁ = {4, 3, 2, 1}, as shown in Figure 3. SRS resource2 occupies two time domain symbols {11, 12} in a slot, corresponding to l ₁ = {2, 1}. As shown in Figure 4, SRS resource3 occupies {12, 13} in a slot. The time domain symbols, corresponding to l ₁ ={1,0}, as shown in Figure 5, SRS resource3 occupies {12} of this time domain symbol in a slot, corresponding to l ₁ ={1}.

In the formula {(4-4), (4-5), (4-4B), (4-5B)}, the number of time domain symbols included in one slot is 14, then N=14, or The number of time domain symbols in the slot in which the reference signal is located is 14, and N=14. As shown in FIG. 2 to FIG. 5, the time domain symbol occupied by the SRS is the last six time domain symbols of one slot, and one SRS. The number of time domain symbols occupied by a resource in a slot belongs to {1, ₂ , 4}, and l ₂ is the index information of the time domain symbols occupied by the SRS resource in the N time domain symbol sets included in a slot, such as As shown in FIG. 2 to FIG. 5, l ₂ is index information in 14 time-domain symbol sets included in a slot of a time domain symbol occupied by the SRS resource. As shown in Figure 2, SRS resource1 occupies four time domain symbols {9, 10, 11, 12} in a slot, corresponding to l ₂ = {9, 10, 11, 12}, as shown in Figure 3. SRS resource2 occupies two time domain symbols {11, 12} in a slot, corresponding to l ₂ = {11, 12}. As shown in Figure 4, SRS resource3 occupies {12, 13} in a slot. The time domain symbols, corresponding to l ₂ ={12,13}, as shown in FIG. 5, SRS resource4 occupies {12} one time domain symbol in a slot, corresponding to l ₂ = {12}.

The above-mentioned l ₂ is the time-domain symbol occupied by the SRS. The symbol indexes in the N time-domain symbols included in one slot are numbered sequentially in order from the time of the arrival, that is, the N time-domain symbols are at the beginning of the slot. time-domain symbol corresponding to l ₂ = 0, the present embodiment does not exclude, symbol index l ₂ comprises a slot in the N time domain symbols in chronological order from the back of increasing sequence number, That is, the time domain symbols at the end of a slot in the N time domain symbols correspond to l ₂ =0. As shown in Figure 2, SRS resource1 occupies four time domain symbols {9, 10, 11, 12} in a slot, corresponding to l ₂ = {4, 3, _2, 1}, as shown in Figure 3. SRS resource2 occupies two time domain symbols {11, 12} in a slot, corresponding to l ₂ = {2, 1}. As shown in Figure 4, SRS resource3 occupies {12, 13} in a slot. The time domain symbols, corresponding to l ₂ ={1,0}, as shown in FIG. 5, SRS resource3 occupies {12} one time domain symbol in a slot, corresponding to l ₂ = {1}.

In this embodiment, the base station may also send signaling information, instructing the terminal to acquire which formula of h() in the sequence group number acquisition formula (1-0), wherein the formula includes at least formula (4-1) and One of {(4-2)~(4-5)}.

Similarly, the base station may also send signaling information, acquires serial number indicating the terminal hopping equation v = c (z ₁₎ _z-1 is obtained according to exactly which formula, wherein the formula includes at least formula (4-1B), and { One of (4-2B) to (4-5B)}.

In another implementation manner, the Q parameter set includes at least a third parameter set and a fourth parameter set, where the third parameter set includes time domain symbol information, where the fourth parameter set does not include Domain symbol information.

If the sequence group number is obtained in the fourth parameter set, the h() in the sequence group number obtaining formula is as shown in the formula (4-6).

h(n _s )=n _s , (4-6)

Similarly, if the serial number is obtained in the fourth parameter set, the serial number v=c(z ₁ ) is represented by z ₁ (4-6B)

z ₁ =n _s , (4-6B)

The base station may also signal that the formula of the hopping reference of the sequence group number is which formula in the formula set, and the formula set may include any two or more of the formulas (4-1) to (4-6). Formula.

Similarly, the base station may be signaling, hopping sequence number v = c (z ₁₎ z ₁ in the formula is a formula referring to the set which formula, the formula set may comprise a formula (4-1B) ~ (4 Any two or more formulas in -6B).

The parameter set in this embodiment may also be selected among a plurality of parameter sets by using a base station and a terminal contract rule. A similar formula in this embodiment can also be selected among a plurality of formulas by base station and terminal contract rules.

Exemplary embodiment 3

In this embodiment, the method for acquiring the uplink demodulation reference signal sequence group number may also be obtained by using the method described in the foregoing exemplary embodiment 1, and/or the exemplary embodiment 2.

Exemplary embodiment 4

In this embodiment, the method for acquiring the sequence group number used in the frequency domain spreading of the uplink control channel may also be obtained by using the method described in the foregoing exemplary embodiment 1, and/or the exemplary embodiment 2.

For example, in the physical uplink control channel (Physical Uplink Control CHannel, PUCCH)

format

1, 2, the uplink control information is used in the frequency domain.

(n) Spreading, the sequence group number u can also be obtained by the method described in the above exemplary embodiment 1, and/or the exemplary embodiment 2.

Exemplary embodiment 5

In this embodiment, n _s is index information of B slots included in a radio frame of the reference signal, but the BWP corresponding to the BWP is different because the BWP of the reference signal (such as SRS) is different. Therefore, the number of slots included in one frame corresponding to different BWPs, that is, B is different, so that n _s will be different. So n _s depends on the BWP where the SRS is located.

FIG. 7 is a schematic diagram of different BWPs corresponding to different slot numbers according to an embodiment. As shown in FIG. 7, one slot on BWP1 corresponds to two slots on BWP2, so that n _s in the above embodiment is according to the above. The slot number obtained by the subcarrier spacing of the BWP where the reference signal is located, for example, a frame is 10 ms. According to the subcarrier spacing corresponding to the BWP1, one frame (frame) includes 20 slots, and a frame is obtained according to the subcarrier spacing corresponding to the BWP2. 40 slots. At time t, if the BWP of the current reference signal is BWP1 as shown in FIG. 7, then n _s = x, and if the BWP of the current reference signal is BWP2 as shown in FIG. 7, then n _s = 2x or n _s = 2x. +1

Exemplary embodiment 6

In this embodiment, the manner in which the parameters of the sequence group number or the sequence number are obtained is determined by signaling information or an appointment rule.

In an embodiment, the sequence group number u is obtained according to formulas (6-1) and (6-2),

u=(f _gh (n _s )+f _ss )mod 30 (6-1)

among them

h(l ₅ , N ₅ , n _s )=l ₅ +n _s *N ₅ ,

Or when the sequence number hopping is enabled, the sequence number v = c(z ₁ ), where z ₁ = l ₅ + n _s * N ₅ .

Determining the acquisition manner of (l ₅ , N ₅ ) by using signaling information or an agreement rule, or determining the meaning of (l ₅ , N ₅ ) by using signaling information or an agreement rule, where the acquisition manner includes at least three modes At least two:

Method 1: (l ₅ , N ₅ )=(l ₀ , L), where L is the number of time domain symbols occupied by one SRS resource in one slot, as shown in FIG. 2, L=4, l ₅ is a reference The index of the time domain symbol in which the signal is located in the L time domain symbols, 0 ≤ l ₅ ≤ L-1, such as l ₅ =0 corresponding to the SRS in the time domain symbol 9 in FIG. 2 .

Manner 2: (l ₅ , N ₅ )=(l ₁ , M), where M is the number of time domain symbols included in the time domain symbol set that the SRS can occupy in a slot, as shown in FIG. 2, all users The SRS can only occupy {1, 2, 4} time domain symbols in the last 6 time domain symbols in a slot in a slot, then M=6, l ₅ is the time domain symbol in which the reference signal is located. M time-domain symbol index, 0≤l ₅ ≤M-1, such as in FIG. 2 in the time-domain SRS symbol corresponding to 9 l ₅ = 1.

Mode 3: (l ₅ , N ₅ )=(l ₂ , N), where N is the number of time domain symbols included in a slot in the slot where the SRS is located, as shown in FIG. 2, N=14, l ₅ is a reference time-domain symbol signal located in the index of N time-domain symbols, 0≤l ₅ ≤N-1, such as 2 in FIG. 9, the time-domain SRS symbol corresponding to l ₅ = 9.

Exemplary embodiment 7

In this embodiment, the sequence number is obtained according to at least one of the following information: the number of time domain symbols included in the time unit in which the reference signal is located; a positive integer M; the time domain symbol in which the reference signal is located is in a time unit The index information in the N time domain symbols included; the index information of the time domain symbol in which the reference signal is located in the preset M time domain symbols; the frame number of the frame in which the reference signal is located; where the reference signal is located The number of time units B included in the frame; the time unit index obtained according to the subcarrier spacing of the BWP where the reference signal is located; the reference signal is obtained according to the sequence number, and the reference signal is transmitted on the reference signal port.

In an embodiment, the reference signal is

The v is a serial number, and v is obtained by the following formula:

Where c (z ₁₎ z ₁ is the first value Pseudo-random random sequence, wherein the initialization value of Pseudo-random random sequence is obtained by convention rule, acquiring the formula z ₁ may be one of the following formula: z ₁ = n _s *N+l ₂ ;z ₁ =n _s *M+l ₁ ;z ₁ =n _s *N+l ₂ +B*N*n'_f;z ₁ =n _s *M+l ₁ +B*M *n'_f;z ₁ =n _s *L+l ₀ .

The l ₁ where the reference signal is a time-domain symbol index information in a predetermined set of M time-domain symbols in, 0≤l ₁ <M, l ₂ is the time domain signal of the reference symbol Index information in N time domain symbols included in the one time unit, 0≤l ₂ <N, the n' _f =n _f or n' _f =n _f mod(E), wherein the n _f E is a predetermined value for the frame number of the frame in which the reference signal is located. B is the number of time units included in the frame in which the reference signal is located. B is the number of slots included in the frame in which the reference signal is located.

In the foregoing embodiment, the uplink reference signal is used as an example, and the disclosure does not exclude the reference signal as a downlink reference signal.

Through the description of the above embodiments, those skilled in the art may understand that the method according to the foregoing embodiment may be implemented by means of software plus a general hardware platform, or may be implemented by hardware. Based on such understanding, the technical solution of the present disclosure may be embodied in the form of a software product stored in a storage medium (such as Read-Only Memory (ROM) / Random Access Memory (Random Access Memory). , RAM, disk, CD-ROM, including a plurality of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the method described in any of the embodiments of the present disclosure.

Embodiment 2

In the embodiment, a reference signal transmission device is further provided, which is used to implement the above-mentioned embodiments, and details have been omitted for description. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the devices described in the following embodiments can be implemented in software, hardware, or a combination of software and hardware, is also possible and conceivable.

According to another embodiment of the present disclosure, there is further provided a transmission device for a reference signal, the device comprising: a first acquisition module, configured to acquire a sequence group number and/or a serial number of the reference signal according to at least one of the following information: : a number N of time domain symbols included in a time unit in which the reference signal is located; a positive integer M; index information in a time domain symbol in which the reference signal is located in N time domain symbols included in a time unit; The index information of the time domain symbol in which the signal is located in the preset M time domain symbols; the frame number of the frame in which the reference signal is located; the number B of time units included in the frame in which the reference signal is located; according to the reference signal a time unit index obtained by the subcarrier spacing of the BWP; the first determining module is configured to determine the reference signal according to the sequence group number and/or the serial number; the first transmission module is configured to transmit the reference signal; Wherein, the M satisfies the following condition: less than or equal to the N, and greater than or equal to A; wherein the A is the reference signal allowed to occupy in a time unit The maximum number of symbols in time domain, or A is the reference number of the occupied time-domain symbol signal in a time unit.

According to another embodiment of the present disclosure, there is further provided a transmission device of a reference signal, the device comprising: an execution module configured to perform at least one of: following a plurality of parameters according to signaling information or a pre-agreed rule Selecting a parameter set in the set, selecting one formula among the plurality of formulas; the second determining module is configured to determine the sequence group number and/or the serial number according to the selected parameter set and/or the selected formula; The determining module is configured to determine the reference signal according to the sequence group number and/or the serial number; the second transmission module is configured to transmit the reference signal.

According to another embodiment of the present disclosure, there is also provided a transmission device of a reference signal, the device comprising: a fourth determining module, configured to determine a generated sequence group number and/or a generation sequence according to signaling information or an appointment rule The fifth determining module is configured to determine the parameter according to the obtaining manner; the first generating module is configured to generate the sequence group number according to the parameter and/or generate the serial number; a sixth determining module, configured to determine a reference signal according to the sequence group number and/or a serial number; and a third transmission module configured to transmit the reference signal.

In this embodiment, the modules of the apparatus of any of the foregoing embodiments may perform the remaining method steps in the corresponding first embodiment.

The above plurality of modules may be implemented by software or hardware. For the latter, the foregoing may be implemented by, but not limited to, the above modules are all located in the same processor; or, the plurality of modules are respectively in any combination. Located in different processors.

Embodiment 3

According to another embodiment of the present disclosure, there is further provided a processor configured to execute a program, wherein the program is executed to perform any of the methods described in the above embodiments.

Embodiment 4

According to another embodiment of the present disclosure, there is also provided a storage medium comprising a stored program, the program running to perform any of the methods described in the above embodiments.

It will be apparent to those skilled in the art that at least one of the above-described modules or at least one step of the present disclosure can be implemented by a general-purpose computing device, and the at least one module or at least one step can be concentrated on a single computing device or distributed in multiple On a network of computing devices. In an embodiment, the at least one module or at least one step may be implemented by program code executable by the computing device, such that the at least one module or at least one step may be stored in the storage device to be executed by the computing device, and In some cases, the steps shown or described may be performed in an order different than that herein, or the at least one module or the at least one step described above may be separately fabricated into at least one integrated circuit module, or at least one of the above-described at least one module or at least Multiple modules or steps in one step are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

Claims

A method for transmitting a reference signal, comprising:

Obtaining at least one of a sequence group number and a sequence number of the reference signal according to at least one of the following information:

The number of time domain symbols included in the time unit in which the reference signal is located; a positive integer M; index information of the time domain symbols in which the reference signal is located in N time domain symbols included in one time unit; the reference signal The index information of the time domain symbol in the preset M time domain symbols; the frame number of the frame in which the reference signal is located; the number B of time units included in the frame in which the reference signal is located; and, according to the reference The time unit index obtained by the subcarrier spacing of the bandwidth portion BWP where the signal is located;

Determining the reference signal according to at least one of the sequence group number and the serial number;

Transmitting the reference signal;

The M satisfies the following condition: less than or equal to the N, and greater than or equal to A; wherein A is the maximum number of time domain symbols allowed to be occupied by the reference signal in one time unit, or A is the number of time domain symbols occupied by the reference signal in one time unit.
The method of claim 1 wherein said M is determined based on one of the following information:

The number of time domain symbols included in the time domain symbol set occupied by the reference signal in a time unit;

a maximum value of the number of time domain symbols occupied by the reference signal in a time unit;

The distance between the time domain symbol with the largest index and the time domain symbol with the smallest index among the time domain symbol sets that the reference signal is allowed to occupy in a time unit;

Wherein the index is an index of a time domain symbol set in the time domain symbol set included in the time unit.
The method of claim 1, wherein at least one of the N and the M is determined according to one of the following ways:

At least one of the N and the M is carried in the received signaling information;

At least one of the N and the M is pre-agreed.
The method of claim 1, wherein said determining said reference signal based on at least one of said sequence group number and a sequence number comprises determining said reference signal by:

Wherein u is the sequence group number,
For the reference signal,
For the length of the reference signal, δ is the total number of dressing levels of the interleaved frequency division multiple access IFDMA or δ is 0, and ω belongs to {0, 1};

In the stated
When it is greater than the predetermined threshold:

v is the serial number, which belongs to {0, 1}; 0 ≤ α ≤ 2π,
Is less than
Maximum prime number;

In the stated
In the case of less than or equal to the predetermined threshold,
among them,
It is obtained by searching the preset table according to the sequence group number u, and the v is 0.
The method of claim 1 wherein

The index information in the time domain symbol set included in the time domain of the time domain symbol in which the reference signal is located is sequentially increased from the back to the front in chronological order.
The method according to claim 1, wherein the obtaining the sequence group number of the reference signal according to at least one of the following information comprises: acquiring the sequence group number of the reference signal according to the following manner:

The sequence group number u=(f gh (x)+f ss ) mod C;

Alternatively, the sequence group number u is obtained according to f gh (x);

Wherein f gh (x) is a function of x, the x includes at least one of the information, the C is a total number of sequence groups, and the f ss is according to an agreed rule and received signaling information Acquired by at least one of the included parameters.
The method of claim 6 wherein

Wherein h(x) is a function of x;

Wherein D is an integer greater than or equal to 8, c(z) is the zth value in the sequence generated by the random sequence function c(), and z is a non-negative integer.
The method of claim 7 satisfies at least one of the following features:

The D is carried in the received signaling information;

The c() is a pseudo-random pseudo-random random sequence generation function;

In the case where the value of C is greater than 30, the D is greater than 8;

When x 1 >0,
When x 1 =0
among them
The method of claim 7, wherein the h(x) satisfies one of the following formulas:

h(l 1 ,M,n s )=l 1 +n s *M;

h(l 1 , M, n s , n f )=l 1 +n s *M+B*n' f *M;

h(l 2 , N, n s )=l 2 +n s *N;

h(l 2 , N, n s , n f )=l 2 +n s *N+B*n' f *N;

Wherein said l 1 where the reference signal is a time-domain symbol index information in a predetermined set of M time-domain symbols in, 0≤l 1 <M, the l 2 when the reference signal is located The index information of the domain symbols in the N time domain symbols included in one time unit, 0≤l 2 <N, the n' f =n f or n' f =n f mod(E), wherein the n f The frame number of the frame in which the reference signal is located, the E is a predetermined value, and the n s is a time unit index obtained according to a subcarrier spacing of the BWP where the reference signal is located, or the n s is the reference signal The index of the time unit in a frame.
The method of claim 1 wherein said reference signal comprises one of the following reference signals:

The reference signal, the demodulation reference signal, and the control channel frequency domain spreading sequence are measured.
The method according to claim 1, wherein the obtaining the serial number of the reference signal according to at least one of the following information comprises:

In the case of a sequence hop, the sequence number v = c(z 1 ), where z 1 is obtained from at least one of the information; c(z) is the zth in the sequence generated by the random sequence function c() The value, z is a non-negative integer.
The method of claim 11 wherein said z 1 is obtained according to one of the following formulas:

z 1 =n s *N+l 2 ;

z 1 =n s *M+l 1 ;

z 1 =n s *N+l 2 +B*N*n'f;

z 1 =n s *M+l 1 +B*M*n'f;

The l 1 is index information of a time domain symbol in which the reference signal is located in a preset set of M time domain symbols, where 0≤l 1 <M, and the l 2 is a time domain symbol in which the reference signal is located Index information in N time domain symbols included in a time unit, 0 ≤ l 2 < N, said n' f = n f or n' f = n f mod (E), wherein said n f is a frame number of the frame in which the reference signal is located, E is a predetermined value, and the n s is a time unit index obtained according to a subcarrier spacing of the BWP where the reference signal is located, or the n s is a time unit in which the reference signal is located The index in a frame.
A method for transmitting a reference signal, comprising:

Performing at least one of the following operations according to the signaling information or the pre-agreed rule: selecting one parameter set among the plurality of parameter sets, and selecting one formula among the plurality of formulas;

Determining at least one of a sequence group number and a sequence number according to at least one of the selected parameter set and the selected formula;

Determining a reference signal according to at least one of the sequence group number and the sequence number;

Transmitting the reference signal.
The method of claim 13 wherein

The plurality of parameter sets includes at least a first parameter set and a second parameter set;

The first parameter set includes at least one of the following parameters: a number L of time domain symbols occupied by the reference signal in one time unit, and a time domain symbol occupied by the reference signal in the L time domain symbols Index information in the index of the time unit obtained according to the subcarrier spacing of the bandwidth portion BWP where the reference signal is located;

The second parameter set includes at least one of the following parameters: a number N of time domain symbols included in a time unit in which the reference signal is located; a positive integer M; an index of a time domain symbol in which the reference signal is located in a time unit Information; index information of a time domain symbol in which the reference signal is located in a preset M time domain symbols; a frame number of a frame in which the reference signal is located; and a number of the time units included in a frame in which the reference signal is located B. A time unit index obtained according to a subcarrier spacing of the BWP where the reference signal is located.
The method of claim 13 wherein:

The plurality of parameter sets includes at least a third parameter set and a fourth parameter set, wherein the third parameter set includes time domain symbol index information, and the fourth parameter set does not include time domain symbol index information.
The method of claim 14, wherein at least one of the N and the M is determined according to one of the following ways:

At least one of the N and M is carried in the received signaling information;

At least one of the N and the M is pre-agreed.
The method of claim 13 wherein determining the reference signal based on at least one of the sequence group number and the sequence number comprises determining the reference signal by:

Wherein u is the sequence group number,
For the reference signal,
For the length of the reference signal, δ is the total number of dressing levels of the interleaved frequency division multiple access IFDMA or δ is 0, and ω belongs to {0, 1};

In the stated
When it is greater than the predetermined threshold:

v is the serial number, which belongs to {0, 1}; 0 ≤ α ≤ 2π,
Is less than
Maximum prime number;

In the stated
In the case of less than or equal to the predetermined threshold,
among them,
It is obtained by searching the preset table according to the sequence group number u, and the v is 0.
The method of claim 13 wherein determining the sequence group number based on at least one of the selected parameter set and the selected formula comprises:

The sequence group number u=(f gh (x)+f ss ) mod C;

Alternatively, the sequence group number u is obtained according to f gh (x);

Wherein f gh (x) is a function of x, the x includes at least one of information in the selected parameter set, the C is a total number of sequence groups, and the f ss is according to an agreed rule and Acquired by at least one of the parameters included in the received signaling information.
The method of claim 18, wherein

Wherein h(x) is a function of x;

Wherein D is an integer greater than or equal to 8, c(z) is the zth value in the sequence generated by the random sequence function c(), and z is a non-negative integer.
The method of claim 19, satisfying one of the following features:

The D is carried in the received signaling information;

The c() is a pseudo-random pseudo-random random sequence generation function;

In the case where the value of C is greater than 30, the D is greater than 8;

When x 1 >0,
When x 1 =0
among them
The method of claim 19, wherein the h(x) satisfies one of the following formulas:

h(l 1 ,M,n s )=l 1 +n s *M;

h(l 1 , M, n s , n f )=l 1 +n s *M+B*n' f *M;

h(l 2 , N, n s )=l 2 +n s *N;

h(l 2 , N, n s , n f )=l 2 +n s *N+B*n' f *N;

Wherein said l 1 where the reference signal is a time-domain symbol index information in a predetermined set of M time-domain symbols in, 0≤l 1 <M, the l 2 when the reference signal is located The index information of the domain symbols in the N time domain symbols included in one time unit, 0≤l 2 <N, the n' f =n f or n' f =n f mod(E), wherein the n f For the frame number of the frame in which the reference signal is located, the E is a predetermined value, B is the number of time units included in the frame in which the reference signal is located, and the n s is a subcarrier according to the BWP where the reference signal is located. The time unit index obtained by the interval or the n s is an index of a time unit in which the reference signal is located in one frame.
The method of claim 13, wherein the plurality of formulas are used to describe a hop rule of at least one of the sequence group number and the sequence number.
The method of claim 22, wherein the hopping formula of the sequence group number comprises at least one of the following formulas:

h(l,L,n s )=l 0 +n s *L;

h(l 1 ,M,n s )=l 1 +n s *M;

h(l 1 , M, n s , n f )=l 1 +n s *M+B*n' f *M;

h(l 2 , N, n s )=l 2 +n s *N;

h(l 2 ,N,n s ,n f )=l 2 +n s *N+B*n' f *N

The hopping formula of the sequence number is v=c(z 1 ), where z 1 is obtained according to one of the following formulas:

z 1 =n s *N+l 2 ;

z 1 =n s *M+l 1 ;

z 1 =n s *N+l 2 +B*N*n'f;

z 1 =n s *M+l 1 +B*M*n'f;

Wherein l 1 is the time domain symbols where the reference signal index information in a predetermined set of M time-domain symbol in the l 2 is the reference signal in a time domain symbol units included index information of the N time-domain symbols, the n 'f = n f or n' f = n f mod ( E), where n f is the signal of the reference frame number of the frame where, E is a predetermined value; the B is the number of time units included in the frame in which the reference signal is located, and the n s is a time unit index obtained according to the subcarrier spacing of the BWP where the reference signal is located or the n s is the reference signal The index of the time unit in a frame;

The sequence group number u=(f gh (x)+f ss )mod C,
C is the total number of sequence groups; D is an integer greater than or equal to 8; c(z) is the zth value in a random sequence, and z is a non-negative integer.
The method of claim 13 wherein said determining a serial number based on the selected parameter and the selected formula comprises:

In the case of a sequence hop, the sequence number v = c(z 1 ), where z 1 is obtained according to the parameter; c(z) is the zth value in the sequence generated by the random sequence function c(), z Is a non-negative integer.
The method of claim 24, wherein said z 1 is obtained according to one of the following formulas:

z 1 =n s *N+l 2 ;

z 1 =n s *M+l 1 ;

z 1 =n s *N+l 2 +B*N*n'f;

z 1 =n s *M+l 1 +B*M*n'f;

The l 1 where the reference signal is a time-domain symbol index information in a predetermined set of M time-domain symbols in, 0≤l 1 <M, l 2 is the time domain signal of the reference symbol Index information in N time domain symbols included in a time unit, 0 ≤ l 2 < N, said n' f = n f or n' f = n f mod (E), wherein said n f is said The frame number of the frame in which the reference signal is located, the E is a predetermined value, and the n s is a time unit index obtained according to a subcarrier spacing of the BWP where the reference signal is located or the time where the n s is the reference signal The index of the unit in a frame.
A signaling sending method includes:

Sending signaling information to the communication node;

The signaling information is used to indicate that the communication node performs at least one of: selecting one parameter set in at least one parameter set, selecting one formula in at least one formula; and selecting and selecting according to the selected parameter set At least one of the formulas determines the reference signal.
A method for transmitting a reference signal, comprising:

Determining, according to the signaling information or the agreed rule, a manner of acquiring a parameter that generates at least one of a sequence group number and a generated sequence number;

Determining the parameter according to the obtaining manner;

Generating at least one of a sequence group number and a sequence number according to the parameter;

Determining a reference signal according to at least one of the sequence group number and the sequence number;

Transmitting the reference signal.
The method of claim 27 wherein said parameter comprises at least one of the following parameters:

The number of time domain symbol indexes and time domain symbols.
The method according to claim 28, wherein the manner of obtaining the time domain symbol index comprises at least three of the following acquisition modes:

The time domain symbol index is an index of time domain symbols in which the reference signals are located in L time domain symbols, where L is a number of time domain symbols occupied by the reference signal in one time unit;

The time domain symbol index is an index of a time domain symbol in which the reference signal is located in N time domain symbols, where N is a number of time domain symbols included in a time unit in which the reference signal is located;

The time domain symbol index is an index of time domain symbols in which the reference signal is located in M time domain symbols, where M is a time domain included in a time domain symbol set that the reference signal is allowed to occupy in one time unit. The number of symbols.
The method according to claim 28, wherein the manner of obtaining the number of time domain symbols includes at least three of the following acquisition modes:

The number of time domain symbols is a number of time domain symbols occupied by the reference signal in one time unit;

The number of time domain symbols is a number of time domain symbols included in a time unit in which the reference signal is located;

The number of time domain symbols is the number of time domain symbols included in the set of time domain symbols allowed to be occupied by the reference signal in one time unit.
A transmission device for reference signals, comprising:

The obtaining module is configured to obtain at least one of a sequence group number and a serial number of the reference signal according to at least one of the following information:

The number of time domain symbols included in the time unit in which the reference signal is located; a positive integer M; index information of the time domain symbols in which the reference signal is located in N time domain symbols included in one time unit; the reference signal The index information of the time domain symbol in the preset M time domain symbols; the frame number of the frame in which the reference signal is located; the number B of time units included in the frame where the reference signal is located; according to the reference signal The time unit index obtained by the subcarrier spacing of the bandwidth portion BWP;

Determining a module, configured to determine the reference signal according to at least one of the sequence group number and the serial number;

a transmission module configured to transmit the reference signal;

The M satisfies the following condition: less than or equal to the N, and greater than or equal to A; wherein A is the maximum number of time domain symbols allowed to be occupied by the reference signal in one time unit, or A is the number of time domain symbols occupied by the reference signal in one time unit.
A transmission device for reference signals, comprising:

The execution module is configured to perform at least one of the following operations according to the signaling information or the pre-agreed rule: selecting one parameter set among the plurality of parameter sets, and selecting one formula among the plurality of formulas;

a first determining module, configured to determine at least one of a sequence group number and a sequence number according to at least one of the selected parameter set and the selected formula;

a second determining module, configured to determine a reference signal according to at least one of the sequence group number and the serial number;

a transmission module configured to transmit the reference signal.
A transmission device for reference signals, comprising:

The first determining module is configured to determine, according to the signaling information or the agreement rule, a manner of acquiring a parameter that generates at least one of a sequence group number and a sequence number;

a second determining module, configured to determine the parameter according to the obtaining manner;

Generating a module, configured to generate at least one of the sequence group number and the sequence number according to the parameter;

a third determining module, configured to determine a reference signal according to at least one of the sequence group number and the sequence number;

a transmission module configured to transmit the reference signal.
A storage medium comprising a stored program, wherein the program is executed to perform the method of any of the preceding claims 1 to 30.
A processor, the processor being arranged to run a program, the program running to perform the method of any of the preceding claims 1 to 30.